If this works for deleting phone calls, it does *not* work for just deleting texts (at least not on my Gen1 Titan). I've deleted texts/threads from the Messaging app and the contact still remains in the "Recent" tiles list. If someone were to write an app to address this, it would be a best seller (ATTN: Devs!!!!).
For sh!ts and giggles I just tried deleting all the phone calls from a specific contact that doesn't IM me and they still appear in the Recent tiles list, so whatever you're doing MaulerX, it doesn't apply to my phone or OS version
...sigh... maybe you have a custom ROM?
Techiedude